So within the past few days my galaxy s3 has been having power button issues. It's become very sensitive. So sensitive that anytime my finger passes by the button it goes to my lock screen. Also after I'm done using it I press the power button to put it to hybernate it will light up again and will consistently do that and it takes several tries to get the option screen to pop up so I can turn it off. Once it's off, it will continuely vibrate and then it will turn on again. It seems to be getting worse. I've had this phone for less then a year with no other issues til now. If anyone knows about this and can give me some information on how to fix the problem, it would be much appreciated.